Brain Pickings

Einstein, Gödel, and the Science of Time Travel


Meeting your future grandchildren in a rotating universe.

The fabric of time remains among the most fascinating frontiers of science, and the concept of time travel among the most prolific plot lines of science fiction. In this short video from THNKR, who also brought us the BOOKD series on paradigm-shifting books, theoretical physicist Ronald Mallett goes against the present scientific consensus and argues, by way of Einstein and Gödel’s theories, that time travel might, indeed, be possible. Whether in a century we’ll look back and laugh at the wild misguidedness of his proposition or at its blatant obviousness, only time will tell.

Gödel actually showed that if we were living in a rotating universe, this universe could create loops in time — and by “loops in time” I mean you actually have a timeline that’s normally a straight line of past, present, and future, that’s turned into a loop — and you can actually go along that loop in time and go back into the past. And he based his work squarely on Einstein’s general theory of relativity.

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